97 citations · 358 across the 30 of their papers we have counts for
32 papers
Modeling extreme mass-ratio inspirals in astrophysical and dark-matter environments
Dongjun Li, Hao-Jui Kuan, Colin Weller +7
Extreme mass-ratio inspirals offer a powerful probe of massive black holes and their environments, but interpreting their signals requires accurate models of orbital dynamics and r…
Hybrid-star asteroseismology across sharp phase interfaces: Slow and rapid conversion in the - and -mode spectra
Zoey Zhiyuan Dong, Hao-Jui Kuan, Nicolas Yunes
First-order phase transitions in neutron-star interiors can leave signatures in the polar quasi-normal-mode spectrum. We compute the complex quadrupolar - and -mode spectra…
Celephais: efficient spectral initial data code for precessing compact binaries
Hao-Jui Kuan
Large numerical-relativity surveys require compact-binary initial data that are both spectrally accurate and inexpensive to construct, including for systems with unequal masses and…
Donutization Inside Neutron Stars: Shell-Localized Scalar Fields
Hao-Jui Kuan, Alan Tsz-Lok Lam, Jacquelyn Noronha-Hostler +1
Heavy scalar fields ( eV) in scalar-tensor gravity are expected to be hidden from neutron-star observations because their Compton wavelength is sub-stellar. We s…
Difference between quark stars and neutron stars in universal relations and their effect on gravitational waves
Duanyuan Gao, Hao-Jui Kuan, Yurui Zhou +4
We calculate the -mode frequency and tidal overlap of quark stars using the full general relativity method. We verify the universal relations obtained from conventional neutron…
Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries
Yong Gao, Hao-Jui Kuan, Cheng-Jun Xia +2
Dynamical tides of neutron stars in the late stages of binary inspirals provide a viable probe into dense matter through gravitational waves, and potentially trigger electromagneti…
The error budget of binary neutron star merger simulations for configurations with high spin
Hao-Jui Kuan, Ivan Markin, Maximiliano Ujevic +4
Numerical-relativity simulations offer a unique approach to investigating the dynamics of binary neutron star mergers and provide the most accurate predictions of waveforms in the…
Non-linear saturation of gravito-inertial modes excited by tidal resonances in binary neutron stars
Alexis Reboul-Salze, Aurélie Astoul, Hao-Jui Kuan +1
During the last seconds of a binary neutron-star merger, the tidal force can excite stellar oscillation modes to large amplitudes. From the perspective of premerger electromagnetic…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Axisymmetric stability of neutron stars as extreme rotators in massive scalar-tensor theory
Alan Tsz-Lok Lam, Kalin V. Staykov, Hao-Jui Kuan +2
Differentially rotating scalarized neutron stars, mimickers of binary merger remnants, can possess an enormous angular momentum larger than what could possibly be sustained in a ne…
Convective stability analysis of massive neutron stars formed in binary mergers
Yong Gao, Kota Hayashi, Kenta Kiuchi +3
We perform fully general-relativistic hydrodynamics simulations of binary neutron star mergers over post-merger to investigate the dynamics of remnant massive neutron…
Tidal Resonance in Binary Neutron Star Inspirals: A High-Precision Study in Numerical Relativity
Hao-Jui Kuan, Kenta Kiuchi, Masaru Shibata
We investigate the tidal resonance of the fundamental (-)mode in spinning neutron stars, robustly tracing the onset of the excitation to its saturation, using numerical relativi…
Accessing universal relations of binary neutron star waveforms in massive scalar-tensor theory
Alan Tsz-Lok Lam, Yong Gao, Hao-Jui Kuan +3
We investigate how the quasi-universal relations connecting tidal deformability with gravitational waveform characteristics and/or properties of individual neutron stars that were…
Premerger phenomena in neutron-star binary coalescences
Arthur G. Suvorov, Hao-Jui Kuan, Kostas D. Kokkotas
A variety of high-energy events can take place in the seconds leading up to a binary neutron-star merger. Mechanisms involving tidal resonances, electrodynamic interactions, or sho…
Binary neutron star mergers in massive scalar-tensor theory: Properties of post-merger remnants
Alan Tsz-Lok Lam, Hao-Jui Kuan, Masaru Shibata +2
We investigate the properties of post-merger remnants of binary neutron star mergers in the framework of Damour-Esposito-Farese-type scalar-tensor theory of gravity with a massive…
Magnetic amplification in premerger neutron stars through resonance-induced magnetorotational instabilities
Arthur G. Suvorov, Hao-Jui Kuan, Alexis Reboul-Salze +1
Tidal resonances in the final seconds of a binary neutron-star inspiral can excite oscillation modes in one or both of the constituents to large amplitudes. Under favorable circums…
Magnetar-powered Neutrinos and Magnetic Moment Signatures at IceCube
Ting Cheng, Hao-Jui Kuan, Ying-Ying Li +1
The IceCube collaboration pioneered the detection of neutrino events and the identification of astrophysical sources of high-energy neutrinos. In this s…
The Last Three Seconds: Packed Message delivered by Tides in Binary Neutron Star Mergers
Hao-Jui Kuan, Kostas D. Kokkotas
It is known that the leading-order tidal effects in gravitational waveforms can be quantified by tidal deformability, while higher order terms, e.g., harmonic overtones of Love num…
Binary neutron star mergers in massive scalar-tensor theory: Quasi-equilibrium states and dynamical enhancement of the scalarization
Hao-Jui Kuan, Karim Van Aelst, Alan Tsz-Lok Lam +1
We study quasi-equilibrium sequences of binary neutron stars in the framework of Damour-Esposito-Farese-type scalar-tensor theory of gravity with a massive scalar field, paying par…
Measuring spin in coalescing binaries of neutron stars showing double precursors
Hao-Jui Kuan, Arthur G. Suvorov, Kostas D. Kokkotas
Gamma-ray bursts resulting from binary neutron-star mergers are sometimes preceded by precursor flares. These harbingers may be ignited by quasi-normal modes, excited by orbital re…
Dynamical Scalarization during Neutron Star Mergers in scalar-Gauss-Bonnet Theory
Hao-Jui Kuan, Alan Tsz-Lok Lam, Daniela D. Doneva +3
In certain classes of the scalar-Gauss-Bonnet theory strong spacetime curvature in the vicinity of neutron stars and black holes can spontaneously trigger scalarization in the comp…
Quasi-periodic oscillations in precursor flares via seismic aftershocks from resonant shattering
Arthur G. Suvorov, Hao-Jui Kuan, Kostas D. Kokkotas
GRB 211211A was accompanied by a kilonova, implying a merger origin for the event. A precursor flare, modulated by quasi-periodic oscillations at $\approx 22\, \mbox{Hz}$, was also…
-mode Imprints in Gravitational Waves from Coalescing Binaries involving Aligned Spinning Neutron Stars
Hao-Jui Kuan, Kostas D. Kokkotas
The excitation of -mode in a neutron star member of coalescing binaries accelerates the merger course, and thereby introduces a phase shift in the gravitational waveform. Emphas…
Constraining equation of state groups from -mode asteroseismology
Hao-Jui Kuan, Christian J. Krüger, Arthur G. Suvorov +1
Buoyancy-restored modes inside neutron stars depend sensitively on both the microphysical (e.g., composition and entropy gradients) and macrophysical (e.g., stellar mass and radius…